Fine root dynamics and partitioning of root respiration into growth and maintenance components in cool temperate deciduous and evergreen forests

Sun, Lifei; Hirano, Takashi; Yazaki, Tomotsugu; Teramoto, Munemasa; Liang, Naishen

Fine root dynamics and partitioning of root respiration into growth and maintenance components in cool temperate deciduous and evergreen forests

Sun, Lifei; Hirano, Takashi; Yazaki, Tomotsugu et al.

Plant and soil, 2020, 446(1-2), 471-486

Permalink : https://hdl.handle.net/2115/80115

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アクセス権	open access
URI	https://hdl.handle.net/2115/80115
タイトル	Fine root dynamics and partitioning of root respiration into growth and maintenance components in cool temperate deciduous and evergreen forests
著者	Sun, Lifei ; Hirano, Takashi ; Yazaki, Tomotsugu ; Teramoto, Munemasa ; Liang, Naishen
著者名 Sun, Lifei
e-Rad_Researcher 20208838 著者名 Hirano, Takashi
e-Rad_Researcher 00449290 著者名 Yazaki, Tomotsugu
著者名 Teramoto, Munemasa
著者名 Liang, Naishen
言語	英語
キーワード	Biomass
	Chamber
	Ingrowth core
	Production
	Soil respiration
	Trenching
発行日	2020-01
出版者	Springer
収録物名	Plant and soil
巻(号)	446(1-2)
ページ	471-486
抄録	Aims: We aim to show the seasonality of fine root dynamics and examine the relationship between root respiration (Rr) and fine root dynamics. In addition, we try partitioning Rr into growth (Rg) and maintenance (Rm) components. Methods: Soil respiration (Rs), fine root biomass (B), and fine root production (P) were measured simultaneously over a growing season in adjoining deciduous (DF) and evergreen (EF) forests. The Rr was separated from Rs by the trenching method, and Rr was partitioned into Rg and Rm using an empirical model. Results: The seasonality of P was almost the same in both forests, though that of B was different. The Rr showed a positive correlation with P in both sites. Annual Rr was estimated to be 610 (DF) and 393 (EF) g C m⁻² year-¹. Annual Rg and Rm were 121 and 166 (DF), and 86 and 182 (EF) g C m⁻² year-¹, respectively. Conclusions We found a clear seasonal pattern in P and a positive linearity between Rr and P. Despite considerable uncertainty due to the small sample size, presence of larger roots, and measurement uncertainty, the results suggest that our approach is capable of partitioning Rr.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	This is a post-peer-review, pre-copyedit version of an article published in Plant and Soil. The final authenticated version is available online at: http://dx.doi.org/10.1007/s11104-019-04343-z
PISSN	0032-079X
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1007/s11104-019-04343-z